function enhanceLinks() {
	var links = document.getElementsByTagName("a");
	var thisDomain = document.domain.split('www.');
	var thisDomain = (thisDomain[1]) ? thisDomain[1] : document.domain ;
	for (var i = 0; i < links.length; i++) {
		if(links[i].href.indexOf(thisDomain) == -1 && links[i].href != '') {
			links[i].target = '_blank';
		}
	}
}

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			if (oldonload) {
				oldonload();
			}
			func();
		}
	}
}

addLoadEvent(function() {
	enhanceLinks();
	}
);